JPS5819694Y2 - audio equipment - Google Patents

audio equipment

Info

Publication number
JPS5819694Y2
JPS5819694Y2 JP13326079U JP13326079U JPS5819694Y2 JP S5819694 Y2 JPS5819694 Y2 JP S5819694Y2 JP 13326079 U JP13326079 U JP 13326079U JP 13326079 U JP13326079 U JP 13326079U JP S5819694 Y2 JPS5819694 Y2 JP S5819694Y2
Authority
JP
Japan
Prior art keywords
power switch
power
transistor
audio equipment
voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP13326079U
Other languages
Japanese (ja)
Other versions
JPS5651117U (en
Inventor
宗像幸男
小菅正
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corp filed Critical Pioneer Corp
Priority to JP13326079U priority Critical patent/JPS5819694Y2/en
Publication of JPS5651117U publication Critical patent/JPS5651117U/ja
Application granted granted Critical
Publication of JPS5819694Y2 publication Critical patent/JPS5819694Y2/en
Expired legal-status Critical Current

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  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)

Description

【考案の詳細な説明】 本考案は、電源スィッチに改良を加えた音響機器に関す
る。[Detailed Description of the Invention] The present invention relates to an audio device with an improved power switch.

そして本考案の目的とするところは、電源スイッチが小
容量のもので済むようにした音響機器を提供するにある
。An object of the present invention is to provide an audio device that requires only a small capacity power switch.

以下、図を参照して本考案の一実施例を説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

図はテープレコーダについてのもので、信号系統は再生
回路のみを示している。The figure shows a tape recorder, and the signal system shows only the playback circuit.

再生ヘッド１の出力はプリアンプ２、メインアンプ３を
介して増幅されるようになっており、そのプリアンプ２
には電源スィッチＳ１を介して電源＋Ｂに接続され、メ
インアンプ３はスイッチング用トランジスタＱ１を介し
て電源十Ｂに接続されている。The output of the playback head 1 is amplified via a preamplifier 2 and a main amplifier 3.
is connected to a power supply +B via a power switch S1, and the main amplifier 3 is connected to a power supply +B via a switching transistor Q1.

そして、このトランジスタＱｌはトランジスタＱ２に制
御され、このトランジスタＱ２のベースは前記電源スイ
ッチＳ１の負荷側（出力側）に接続されている。This transistor Ql is controlled by a transistor Q2, and the base of this transistor Q2 is connected to the load side (output side) of the power switch S1.

一方、プランジャＰ、モータＭは電源十Ｂに直接接続さ
れ、更にスイッチング用トランジスタＱ４ｔＱ３を各々
介して接地されている。On the other hand, the plunger P and the motor M are directly connected to the power supply 1B, and further grounded through switching transistors Q4tQ3.

そして、これらのトランジスタＱ４ｔＱ：３のベースは
、スイッチＳ３．Ｓ２を介して電源スィッチｓ１の負荷
側に接続されている。The bases of these transistors Q4tQ:3 are connected to switches S3. It is connected to the load side of the power switch s1 via S2.

抵抗Ｒ，−Ｒ４は各々対応するトランジスタのベース保
護抵抗である。Resistors R and -R4 are base protection resistors of respective corresponding transistors.

以上において、電源スィッチＳ１がオフの時にはプリア
ンプ２は電圧が供給されず、またトランジスタＱ１〜Ｑ
４がオフ状態であるので、メインアンプ３にも電圧が供
給されず、スイッチＳ２＋８３のオン・オフ如何に拘ら
ずプランジャＰ、モータＭも不動作状態にある。In the above, when the power switch S1 is off, the preamplifier 2 is not supplied with voltage, and the transistors Q1 to Q
4 is in an off state, no voltage is supplied to the main amplifier 3, and the plunger P and motor M are also in an inoperative state regardless of whether the switch S2+83 is on or off.

次に電源スィッチＳ１をオンすれば、プリアンプ２に電
圧が供給され、またトランジスタＱ２がオンとなるので
トランジスタＱ１もオンとなり、メインアンプ３にも電
圧力収給されるようになる。Next, when the power switch S1 is turned on, voltage is supplied to the preamplifier 2, and since the transistor Q2 is turned on, the transistor Q1 is also turned on, and voltage power is also supplied to the main amplifier 3.

更にスイッチＳ２．Ｓ３の入力側にも電圧か供給される
ので、それらをオンすれば、トランジスタＱ３．Ｑ４が
オンして、プランジャＰ、モータＭが動作するようにな
る。Furthermore, switch S2. Voltage is also supplied to the input side of S3, so if they are turned on, transistor Q3. Q4 is turned on, and plunger P and motor M begin to operate.

以上において、電源スィッチＳ１を流れる電源は、消費
電力が少ないプリアンプ２に流れる電流とトランジスタ
Ｑ２〜Ｑ４のベース電流であるので、非常に少なくなる
。In the above, the power flowing through the power switch S1 is very small because it is the current flowing to the preamplifier 2 and the base current of the transistors Q2 to Q4, which consume less power.

このため、その電源スィッチＳｌには大容量のものでな
く、小容量のもので充分足りるようになる。Therefore, it is sufficient to use a small-capacity power switch Sl instead of a large-capacity one.

以上から本考案によれば、電源スイッチに小型で小容量
のものが使用できると共に、トランジスタ等の半導体ス
イッチもそこに簡単に利用できるヨウになり、電源スィ
ッチのリモートコントロール化が可能となる。As described above, according to the present invention, a small and small capacity power switch can be used, and a semiconductor switch such as a transistor can also be easily used there, making it possible to remotely control the power switch.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本考案の一実施例の回路図である。 The figure is a circuit diagram of an embodiment of the present invention.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] プランジャ、モータ、メインアンプ等の大きな電流が流
れる負荷をスイッチング素子を介して電源に接続し、プ
リアンプ等の小さな電流が流れる負荷を電源スィッチを
介して電源に接続して成り、前記スイッチング素子は前
記電源スィッチの負荷側の電圧で制御するようにした音
響機器。A load through which a large current flows, such as a plunger, a motor, a main amplifier, etc., is connected to a power source via a switching element, and a load through which a small current, such as a preamplifier, flows, is connected to the power source through a power switch, and the switching element is connected to the power source through a power switch. Audio equipment that is controlled by the voltage on the load side of a power switch.
JP13326079U 1979-09-28 1979-09-28 audio equipment Expired JPS5819694Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13326079U JPS5819694Y2 (en) 1979-09-28 1979-09-28 audio equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13326079U JPS5819694Y2 (en) 1979-09-28 1979-09-28 audio equipment

Publications (2)

Publication Number Publication Date
JPS5651117U JPS5651117U (en) 1981-05-07
JPS5819694Y2 true JPS5819694Y2 (en) 1983-04-22

Family

ID=29364851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13326079U Expired JPS5819694Y2 (en) 1979-09-28 1979-09-28 audio equipment

Country Status (1)

Country Link
JP (1) JPS5819694Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5863845U (en) * 1981-10-20 1983-04-28 三洋電機株式会社 Power switching circuit

Also Published As

Publication number Publication date
JPS5651117U (en) 1981-05-07

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